Paper-box machine



(No Model.) 7 Sheets-Sheet 1.

0. W. GAY. PAPER BOX MACHINE.

, No. 519,531. Patented May 8, 1894.

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No. 519,531. Patented May 8,1894.

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- PAPER BOX MACHINE. No. 519,531. Patented May 8,1894.

" NITED S T'ES PATENT OF ICE.

OHAUNCFY W. GAY, OF SPRINGFIELD, ASSIGNOR OF ONE-HALF TO L. W. BROWN &00., OF BRIGHTWOOD, MASSACHUSETTS.

PA PER-BOX MACHINE.

SPECIFICATION forming part of Letters Patent No. 519,531, dated May 8,1894..

Application filed October 13,1893. Serial Nu.488,190. (No model.)

Machines, of which the following is a specifb' cation.

This invention relates to improved mechanisms embodied in an automaticmachine for gumming paper box blanks and for folding them and insuringthe adhesion of the adjacent corner flaps or wings.

Theimprovements more particularly relate to-the gumming and pickermechanism, the

blank conveyer, the foldingand setting mechanisms, as to theirconstructions and thecombination or arrangement of certain thereof toeach other, and, incidentally in connection with these mechanisms, theinvention relates to subordinate features for utility and novelty, aswill be hereinafter rendered manifest.

The invention also has reference. to constructions and arrangementswhereby the machine may be utilized for making boxes of diiferent shapesand sizes; and the invention consists in various constructions andcombinations of parts, all substantially as will hereinafter fullyappear and be set forth in the claims.

Reference is to be had to the accompanying drawings, in which theinvention is fully illustrated, wherein- Figure 1 is a plan view of thebox making machine. Fig. 1 is a perspective view of certain of thedriving connections for the blank conveyer. Fig. 2 is a side elevationof the machine, and Fig. 3 is a front elevation of the same. Fig. 4 isan illustrationin perspective of one of the end setting followers. Fig.5 is a perspective view showing one of the corner wing folders and thepiece to which it is connected. Fig. 6 is a vertical section on a largescale taken through a part of the folding and end setting mechanismabout on theline 6-6, Fig. 1. Fig. 7 isa plan view of parts seen in Fig.6, the folding plunger being shown in horizontal section. Figs. 8, 10,and 12 are vertical sections taken substantially onthe plane 7 indicatedby the line 6-,-6, Fig. 1, (and someof the folding operation, whileFigs. 9, 11, and 13, are sectional elevations of the same. Fig. 14 is aperspective view on a large scale showing the formation and arrangementof the parts at the corner of the folding throat or box. Fig. 15 is aplan view of the blank from which the box is produced. Fig. 16 is aperspective view showing the relative disposition of the parts of theblank at the corner of the completed box. showing a slight modificationwhich may be practicably made in the form of the blank at the staysection.

Similar characters of reference indicate corresponding parts in all ofthe views.

A,-Fig. 15, and also Fig. 1,-represents the blank from which the box isformed, the same comprisinga rectangular middle section, a, as boundedby the scores or bending lines, a outside of which are the sidesections, b, b, and end sections, b b the lengths of which are equal tothe proximate boundaries of the middle section, the widths being equalto the height of the'box (or box cover). The blank also comprises thestay sections, d,.which are formed as endwise continuations of theopposite side sections, there being between them and the saidside-sections the scores or bending lines, a These stay sections are oftrapezoidal form, as rendered by the diagonal cut at d These sectionsmight, however, be triangular, as indicated in Fig. 17.

In making the box the side and end sections are bent up at right anglesto the bottom, the wings or stay sections are turned at right angles tothe side sections from which they are unsevered and lie against theinner sides,

near their ends, of the end sections, being stuck thereto by the gum, orusual adhesive,

'no separate stay strips of tape or other flexithereunder, whereupon theblank is detached from the picker and falling upon the conveyor Fig. 17is a plan view is, by the latter, carried over the folding box, orthroat, and under the folding plunger, all very much in the manner ofhandling blanks for envelopes. The walls of the rectangular throat orfolding box stand normally opened from each other leaving the openinglarger than the plan of the box, said walls being inwardly movable, andhave movements imparted periodically to them, whereby the infolded wingsare properly brought to the squared form andhave their ends squeezedhard against the plunger to set the gummed stay-sections. The folded andstuck boxes are then permitted to fall down through the opening at thebottom of the folding box to be cared for in any suitable manner.

The gummer picker, as seen in Figs. 1, 2 and 3, comprises the verticalreciprocatory shaft, f, the motion to which is imparted in the mannerusual in envelope machines, and this shaft has secured to its lower endthe horizontal, transversely ranging bar, or rigid rod,f This rod has,adjustably fitted at each end, the split collars, f held by grip uts, f,in and through both of which collars are secured, by their middlesparallel, and forwardly and rearwardly ranging rods, 9*, g";

on the end portions of these rods are adjust,

ably fitted and held by the set screws, 9 the split hubs, 9 of thepickers, g; the picker members, proper, standing-in parallel front andrear-pairs, or at the corners of an imagis nary rectangle coincidingwith the ends of the end, sections of the blank, and all as plainly seenin Fig. 1. The gumming impressions of the pickers are also seen at 9 inFig. 15. By properly adjusting the bars, 9 along the bar, f the pickersmay be arranged for gumming the blank for a box of different length;-andwith the pickers set for any given length, by adjusting themindividually fore and aft on the bars, g", g", they may be made toaccord with the blanks which are provided for boxes of a differingwidth.

The folding box, or throat, the sides of which are movable, areconstituted by the end followers, B, B, and the vertical plates orblocks, D, D, D, D, front and rear pairs of which are mounted on theslides, E, E. These parts have, at proper times and when the foldingplunger, E, is well down, their closing-in movements, as will behereinafter set forth, but they stand, when the plunger is up, at theboundaries of a rectangle some. what larger than the plan of thecompleted box, and at, or near, the boundaries of the rectangularopening, a:, at the opposite ends of which are the hinged bottomsections, deriving their swinging movements in the manner hereinafterdescribed.

The end followers, and their actuating means, are fully and clearlyshown in Figs. 1 to 4, and 6 to 7; and each of these duplicatedmechanisms comprisesa bottom slide, 20, constrained, for slight extentsof horizontal rectilinear reciprocatory movements, by the groovedformations seen at 22, whichinsure support and guide engagements withthe boundaries of the apertures, 23, transversely formed in the table,as continuations of the throat-opening,w. And the slide has, at itsinner end, the right angular and upright member constituting thefollower proper, B, the height of which is to be approximately that ofthe box to be formed in the machine. The follower-slide is centrally andlongitudinallyaperturedoutsideof the upright member, as seen at 24, andhas at its top rear end the substantial bearings, 25, 25, for thetrunnion-like journals, 26, 26, of the collar, 27, which hasits locationwithinthe said aperture. Through this collar is the shank of thescrew-shaft, 28, the engagement being adjustably insured by the twolock-nuts, 29, 29. This screw-shaft forms one member of a toggle-joint,the other member thereof consisting in the link-piece,

30, which has the bifurcated formation at 32,

" apertured support block, 33, firmly bolted to the table near itslateral edge. The said toggle member, 30, has the depending ear-pieces,34, 34, within and pivotally connected to which is the upper end of thethrust-rod, 35, which is operated through means of the cam, 36, on themain shaft, 0. The slides, E, E, which are at the front and rear of thesaid opening, 00, havetheir reciprocatory movements on the top of thebed toward and from the front and rear edges of the said opening, and atright angles to the line of movement of the followers, B, B. The slideshave the slots, 40, longitudinally thereof (which slots are transverselyof the table of the machine) in which are set the depending ribs, 42, ofthe clamp blocks, 43, which are provided with the upwardly extended edgeflanges, 44, 44. -The aforementioned vertical blocks, or plates, D, D,have their horizontal right angular members, 45, fitted in the clampblocks, these members, the blocks, and slide, all being confined by thebolts, the shanks of which pass down through the parts, 45 and 43, andthe slotted slide, the nut locking them in the confinemen't whenadjusted.

It will be seen that the vertical plates, D, D, have their locationwithin the opposite edges of the aperture, w, their upper edgesbeing,-as will be seenin Figs. 6 to 14,-somewhat higher than the upperedges of the followers. The properly timed and periodicallyreciprocatory movements are imparted to the slides, E, E, by theconnection therewith of arms, 46, extended from the rock-shaft, 47, 47,each rock-shaft having a radial arm, 48, with which is con nected theupper end of a thrust-rod, 49, which receives its reciprocatory movementin one direction by the main-shaft cam, 50, and in the other by thespring, 51. The plates,

D, D, of the front and rear pairs stand in coinciding planes which arewithin the ends of the followers, 13, the outer edges of the platesbeing quite near the working faces of the followers even when the latterare retreated. These plates, D, are, therefore, as manifest, adjustableedgewise toward or from each other, that is, along the lengths of theslides, E,and also are adjustable inwardly, transversely of the slides,to accord with different-sized box blanks, the adjustment of thefollowers, at their connectionswith the screw-togglemembers, beingnecessary to accord with the edgewise adjustment of the plates, D, forchanges of length. Were it not for the purposes of adj ustinent oftheseplates, D, as above explained, a single wider plate of the requiredformation might be provided non-adj ustably as to its width at, andupon,the front and rear slides. Each plate, D, stands a little higherthan the top of the follower, its upper edge being upwardly andoutwardly beveled, as seen 'at 52, and each plate has at its uppercorner toward the follower, a projection, g, which as regardedrelatively to the dimensions of the plateD extends longitudinallyoutwardly from the edge, and also laterally inwardly from the face ofthe plate, D. The upper surface, 53, of this projection is on a bevelcorresponding to, and as a continuation of, the bevel, 52, of the upperedge of the plate, while its inner face, 54, which is opposite from theworking face of. the follower, is'downwardly and inwardly beveled,toward the plane of movement of the vertical end of the plunger, seeFigs. 1, 5, and 6. lower is forced up to edgewise contact with theplates, D D, its upper surface is closely under the aforesaidprojections, g, g. The conveyer, to be soon described in detail, bringsthe flat blank from the pile, at the front, to a position over thethroat, the-side sections, 5, b, overlying the upper edges of theplates, D D, the stay sections in part overlying the projections, g,while the end sections overlie the tops of the followers. The relationsof these parts are shown in Figs. 6 and 7, the heavy broken lines in thelatter figure indicating the blank, the parts, D and B, being shown asretreated. Now, before the said retreated parts move to their contractedrelations, the folding plunger descends and as the middle of the blankis, by the plunger, forced down, the opposite side sections, 1), arebent angularly to the bottom section, a, and the staysections, d, are,by the beveled faces, 54, of the projections, g, caused to assume, moreor less nearly, right angular relations to the side flaps, aswell as tothe bottom, all as will be clearly understood on reference to Figs. 8 to16 of the-drawings, in connection with this description. It will beperceived, Figs. 10 and 11, that as the plunger descends so far as tocause, in its cooperation with the faces 52, 54, the sections,

1), d, to have their top edges nearly vertical and about coincident withthe under surfaces of the projections, g, and the end sections, 17 tostand angularly to the bottom section,.a, the slides, E, are movedinwardly causing the plates, D, D, and the edge or corner, 55, of

When the fol-' the projection to have positions snugly up to the sidesof the plunger, the said blank sections, 1), d, of course assumingpositions next to the plunger; and now each of the followers begins tomove inwardly, finally assuming the position seen in Figs. 12 and 13. Asthe followers come up and remain hard against the blank sections, 5 d,insuring the setting of the adhesive, and at atime when the bottom ofthe plunger is level with the bottom of the followers, the hinged bottomsections, G, G, are forcibly swung up against the bottom end portions ofthe box, and, together with the followers, efiect the positive shapingand setting of the box.

It will be perceived in the drawings that the end of the plungerisreduced or rabbeted, as at 57, at its ends between its corners, sothat the entire end pressure by the followers against the ends of theplunger is next to the corners, where only is such pressure necessary.The bottom sections, G, G, are in the form'lof plain rigid rectangularbars, and are hinged near the lower corners, at their working ends, ofthe follower slides, as fully and clearly shown in the drawings. Eachsaid hinged section has connected thereto the thrust-rod, 58, operatedby the properly timed and guided cam on the cam-shaft.

Each of the vertical members, B, of the followers has, within itsworking face, a recess, 65, in which is set a plate, 66, having itsupper portion overturned to form a hook, 67,

which stands outwardly beyond the face. of the follower, at a placeopposite the rabbeted part, 57, of the plunger. As the plunger, afterhaving forced the blank down against the bottom sections, G, retreatsrapidly upward before the followers have retreated much, should the boxhang upon the plunger it will, by the said hooked clearingdevice, bestripped therefrom and will, i of course, fall down through the throatopening as the members constituting it expand or recede.

The blank conveyer comprises the parallel opposing horizontal bars, h,h, each of which has the longitudinal upwardly extended rib, or feather,70.

The follower members, B, B, have endwise through them, which is .foreand aft of the machine near their upper, inner corners, the ways, 72,for the said feathered conveyer-bars, said ways having the contractedopenings leading to the upper surface of the-follower members so thatthe feathers 70, stand with their edges considerably above the saidupper surfaces. While the conveyer-ba'rs move longitudinally thereofthrough the conveyers for the purpose of receiving thereupon the blanksand carrying them to their positions .over the folding box, theynecessarily have,

by reason of their support upon the followers, movements transversely oftheir lengths bodily with the followers; and to permit this action eachof the bars has, at or near its rear end the angularlyextendedperforated' lug,

75, while through the perforation, 76, of these ends being rigidlysupported, as at 82, to suitable parts of the rock-shaft, 83, which ismounted in suitable bearings therefor of the framing. This rockshaft hasthe radial arm or crank, 8at,which,bya link, 85, is connected to onearm, 86, of an intermediately pivoted lever, the other arm, 87, of whichhas the roller stud in working engagement with the eccentric or cam, 88.The spring, 89, insures the movement of the last described parts in adirection opposite to that in which the said parts are positively forcedby the cam.

The rib or feather 70, which stands above the top of the follower, B,constitutes, in a certain degree, the former member, or part, coactingin the upward and inward turning of the end sections, 5 as will beapparent on an inspection of Fig. 8; the upper part of the follower, B,might be downwardly and inwardly beveled whereby the adequate foldingaction would be derived, but by the construction shown, wherein thefeather stands above the longitudinal way, 72, at its upper orifice,there will be no liability of the lubricant, which is liberally providedin the slideway, coming onto the surface of the blank.

Inasmuch as the upper edges of the plates, D, are higher than the topsof the followers, B, and the plane of movement of the conveyer bars, h,the front pair of the plates have the sheet metal upwardly andrearwardly inclined deflectors, 81, to raise and guide the rear edge ofthe rearwardly moving blankas itassumes its position over the foldingthroat.

The elevating mechanism for the blanks and the means for supplying thepickers with gum are not herein particularly described as theyconstitute no part of the novelties of this invention and may besubstantially as usual and well known in envelope machines.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a machine of the character described, the combination with thevertical reciprocatory picker-shaft having fixed at its lower end thehorizontal bar, f*, the bars, g*, 9 adjustably secured upon, and atright angles to, the end portions of the said bar, f and having thepickers individually supported upon and detachably connected forlongitudinal adjustment along the end portions of said bars, g g",substantially as and for the purpose set forth. p

2. In a machine of the character described, the combination with thevertical reciprocatory shaft having fixed at its lower end, by itsmiddle the horizontal transverse bar, f with the adj ustably confinedcollars, f, at its ends, the horizontal bars, 9*, g ranging inparallelism fore-and-aft and secured in socketlugs of said adjustablecollars, and the individual pickers having split socket-lugs and setscrews whereby they have adjustable engagements along the end portionsof said bars, g substantially as and for the purposes set forth.

3. In a paper-box machine, the combination with the table having theaperture and reciprocatory folding plunger, movable relative thereto, ofthe slide-followers which constitute opposite sides of the throat orfoldingbox and the bottom sections hinged to the working ends of thefollower-slides and means for imparting reciprocatory movements to thefollower-slides, and swinging movements to the hinged bottom sections,while the followers are in their approached relations,substantially asdescribed.

4. In a paper-box machine, the combination with the table having theaperture and the plunger vertically movable relatively thereto, of thefollowers each comprising the horizontal slide base with the aperture,24;, and a vertical inner end member, B, the collar, 27,sup-

ported within said aperture and having lateral journals in bearings atthe top of the slide at each side of the said aperture, the link member,30, pivotally secured upon the table, the screw-shaft, 28, pivotallyconnected to the link member and having its shank ex tended through saidcollar, with the lock-nuts thereon at each side of the collar, the cam,and the thrust-rod actuated thereby which has a connection with one ofthe said link members, substantially as described and for the purposesset forth.

5. In a paper box machine, the combination with the movably supportedfollowers with slide-ways, of the blank conveyor having the side barsthereof longitudinally movable through said ways of the followers, andalso bodily movable transversely of their length in unison with saidfollowers, and means for imparting the approaching and retreatingmovements to the followers, and for moving the conveyor barslongitudinally, substantially as and for the purpose set forth.

'6. In apaper-box machine, the combination with the movably supportedfollowers with ways, of the blank-conveyer comprising the parallel sidebars longitudinally movable through said ways of the follower and bodilymovable transversely of their length in unison with said followers, andhaving at their rear ends the augularly extended perforated lugs, 75,75, the bar, 78, extended transversely of said bars loosely through thesaid perforated lugs, and driving connections for imparting to said bara forward and rearward reciprocatory movement, substantially asdescribed.

7. In a paper-box machine, the combination with the reciprocatoryplunger, and the throat or folding-box consisting of opposing sets ofvertical plates, or members, which are movble toward and from eachother, and means for imparting said movements thereto, of a clearer orstripperset within a recess which is formed within the face of one ofsaid vertical plates and which has, by a hooked portion thereof, aposition of extension outwardly beyond the plane of the face of saidmember, substantially as described.

8. In a paper-box machine, the combination with the plunger and thethroat or folding-box constituted by the plates, D, D, and the followermembers, B, B, of the slides on which said members are mounted and meansfor imparting to the respective sets thereof reciprocatory movements atright angles to each other, and the hinged bottom sections, G, G,secured to the lower inner edges of the follower-slides and means forswinging them into their horizontal positions when the followers are intheir approached relations to the plunger, substantially as described.

9. In apaper-box machine, the combination with the plunger and thefolding-box or throat, the walls of which are constituted by uprightmembers of opposing end followers, and the upright'opposing plates, D,D, at right angles to the followers, andwhich have projections at thetops of their vertical edges adjacent the followers, the upper edges ofthe followers and plates constituting edges by and upon which are bent,as the plunger descends, the end and side sectionsof the box blank Whilethe integral stay sections are, by said corner projections, turned in atright angles to the side sections, substantially as described.

10. In a paper box machine, the combination with the plunger, of afolding-box or throat having one or both of its opposite sidesconstituted by one or more upright plates, D, each with an edgewiselongitudinal projection, g, at an upper corner thereof which is alsolaterally extended relative to the inner face of the plate and havingwith the plate proper the common upward and outward bevel, 52, 53, andsaid projection having the inner surface, 54, which is in a planeperpendicular to the face of the plate downwardly and inwardly incliningtoward the plane of movement of the vertical end of the plunger,

substantially as described.

11. In a paper box machine, the combination with the plunger and thefollower slides, 20, and the slides, E, E, and means for impartingslight reoiprocatory movements thereto, of a folding-box or throatconstituted by the opposing upright members, B, B, of the end followers,and the upright plates, D, D, of the slides, the said plates having aheight greater than that of the members, B, and having their upper edgesbeveled, and with the projections, g, at the corners near and above thefollowers which have the beveled surfaces, 53 and 54, all substantiallyas and for the purpose set forth.

12. In a paper-box machine, the combination with a reciprocatingfoldingplunger, and the followers, B, B, movable toward and from theends thereof, and adjustable for insuring at pleasure variations as totheir normal relative dispositions of the'slides at opposite sides ofthe plunger and having the upright plates,-

D, D, which are adj ustable along the lengths of the slides,substantially as and for the purthe ends thereof and adjustable forinsuring at pleasure variations as to their normal relativedispositions,of the slides at opposite sides of the plunger having theupright plates, D, D, which-are adjustable on the slides in thedirection of the movement thereof, and WhIGh are also adjustable alongthe lengths of the slides'at right angles'to the slide movement, allsubstantially as and for the purposes set forth.

14. In a paper-box machine, the combination with the reciprocatingfolding plunger and the end followers, of the slides E, E, eachlongitudinally slotted, and having the clampblock, 43, with the rib, 42,and the edge flanges, 44, and the vertical plates, D, D, w th thebeveled upper edges, the upper edgewise corner projections, g, andhaving the foot members, 45, which are slotted at right angles to theslot'of the slide, the locking bolt for rigidly clamping the slide,clamp-block, and footmember, and means forimpartinga fore-andaftmovement to the slide, substantially as described.

15. In a paper box machine, the combination with the end followers, ofthe side plates, D, and the slides, E, in which they are mounted, thecams, the rock-shafts, 47, having arms, 46, connected to the slides andhaving the arms, 48, and the thrust-rods, 49, 1n operative relationstosaid'ca'ms and connected to said arms, 48, substantially as described.

16. In a paper-box machine, the combination with the folding plunger andthe end followers and conveyer having its movement at about the level ofthe top of the end followers and the front and rear plates, D, D,constituting the side folders, the upper edges of which, are higher thanthe conveyer, and the front plates, D, having the deflectors, 81,substantially as described.

17. In a paper-box machine, the combination with the followers, B, B,having the ways in their upper portions, of the blank conveyercomprising the bars, h, h, with the upwardly extended ribs or feathers,70, movable through the said ways, the upper edges of the feathersstanding above the tops of the followers, substantially as and for thepurpose set forth.

18. In a paper-box machine, the combination with the followers, of theconveyer bars, h, movable in the ways of the follower and transverselybodily movable with the follower, and the bar, 78, having the slidingconnection, substantially as described, with the conveyer, of thelevers, 80, and the rockshaft, 83, on which they are mounted, the

too 7 links, 79, connecting the upper ends of said levers to said bar,78, the cam, 88, and the lntermediately pivoted lever, 87, one arm ofwhich 1s in operative relation tothe cam, and an arm on the rock-shafthaving a connection wlth the other arm of the lever, substantially asdescribed.

19. In a paper-box machine, the cornbinatron tvith a reciprocatoryplunger, of a throat consistlng of opposing upright plates with theprojections, g, for folding the side and stay sections and the endfollowers at right angles to the plates which, together with the saidplates, are mounted for reciprocatory inovements, the said followers andplate belng adjustable in directions of their movement whereby they may,at pleasure, be caused to have, norinally,relations to consti- OHAUNOEYW. GAY.

W'itnesses:

WM. S. BELLoWs, II. A. CHAPIN.

